Rotary engine.



PATENTED NOV. 28, 1905.

C. O. SYLVESTER.

ROTARY ENGINE.

No. 805,686. PATENTED NOV. 28, 1905. c. 0. SYLVESTER. ROTARY ENGINE.

APPLICATION FILED MAR.13. 1905.

2 SHEETS-SHEET 2.

nmmioz Witness UNITED STATES PATENT OFFICE.

CYRUS O. SYLVESTER, OF LEAVENWORTH, KANSAS, ASSIGNOR OF ONE- THIRD TO JAMES B. WILLIAMS, OF LEAVENWORTH, KANSAS.

ROTARY ENGIN E.

Specification of Letters Patent.

Patented Nov. 28, 1905.

To all whom it may concern.-

Beit known that I, GYRUs O. SYLvEsTER, a citizen of the United States, residing at Leavenworth, in the county of Leavenworth and State of Kansas, have invented certain new and useful Improvements in Rotary Engines, of which the following is a specification.

This invention relates to improvements in engines of that type comprising a suitable casing having a motor-wheel mounted therein and adapted for actuationby impact of a fluid at the peripheral portion thereof.

The object of the invention is to secure a rotary engine of the type above mentioned which embodies a structure of the utmost simplicity, at the same time adapted to render most eflicient service with reference to the amount of power which may be derived therefrom.

For a full description of the invention and the merits thereof and also to acquire a knowledge of the details of construction of the means for effecting the result reference is to be had to the following description and accompanying drawings.

While the invention may be adapted to different forms and conditions by changes in the structure and minor details without departing from the spirit or essential features thereof, still the preferred embodiment is shown in the accompanying drawings, in which Figure 1 is a perspective view of an engine embodying the invention. Fig. 2 is a perspective View, the closing-plate at one side of the casing being removed. Fig. 3 is a vertical transverse sectional view. Fig. 4 is a vertical longitudinal sectional view of a modified form of the invention. Fig. 5 is a vertical transverse sectional View showing the construction in Fig. 4.

Corresponding'and like parts are referred to in the followin description and indicated in all the views 0 the drawings by the same reference characters.

In the drawings the numeral 1 indicates the casing, into which the steam or other fluid may be admitted for impact with a motorwheel 2. The casing 1 preferably consists of two sections, a hollow cup-shaped section 1 and a closing or side plate 1*, adapted to be attached to the section 1 by means of screws or like fastenings. The section 1 of the easing 1 is provided interiorly thereof with an annular partition 3, provided in its circumference with a plurality of exhaust-ports 4.

The impact-surface of the motor-wheel 2 comprises a plurality of buckets 5, arranged at the peripheral portion of the wheel so as to receive the impact of the steam or fluid directly thereagainst as the same enters the caslng.

The casing 1 is separated into an exhaustchamber 6 and a steam-chamber 7, in which the wheel 2 operates. The steam or fluid is admitted to the steam-chamber 7 by means of pipe 8, passing through the casing 1' to inlet-ports 9 in the circumference of the partition 3. The pipes or inlets 8 arev arranged at a tangent to the wheel 2 so as to direct the fluid against the buckets 5 and produce the greatest possible power. The several pipes 8 may extend from a steam-supply pipe 10, which may lead from a suitable source of supply. The inlet-ports 9 are located adj acent an exhaust-port 4, as shown most clearly in the drawings. It will be understood that the plate or side 1 of the casing 1 when secured to the casing is so attached as to form a steam-tight joint as nearly as practicable.

The shaft 11 passes centrally through the casing 1, and the motor-wheel 2 is mounted for rotation with this shaft in any suitable manner. The shaft 11 may be provided with a pulley 12 or the like in order that power may be communicated to the desired point of application.

In the construction shown in the first three figures of the drawings the impact of the fluid, which may be steam, water, or the like, is received by the buckets 5, and the wheel 2 is rotated in a manner which will be obvious. The steam or fluid is adapted to exhaust through the exhaust-ports 4 at predetermined points in the travel of the wheel 2, and a pipe or similar member connects with the exhaust-chamber 6, so as to permit the exhaust of the engine to pass off from said chamber.

In Figs. 4 and 5 the construction of the engine is somewhat different. In this instance the arts l and 1 of the casing are substantial y the same structure as hereinbefore described, being provided, however, with annular exhaust-chambers 13 at points between the hub 14 of the motor-wheel and the peripheral portion of said wheel. The said chambers 13 are arranged upon opposite sides of the wheel 2, and a branched exhaust-pipe 15 has the branches 16 thereof communicating with the chambers 13, so as to permit passing off of the exhaust steam or fluid in a manner which will be clear. The buckets 5 of the Wheel are of substantially the same form as in the preferred construction illustrated, but said wheel being provided at intervals in the peripheral portion thereof with inwardly-extending exhaust-ports 17. The ports 17 comprise slots extending from the peripheral portion of the wheel inwardly to a point about opposite the center of the exhaust-chambers 13. The steam or fluid is admitted to the casing 1 by the same means as described before, and the impact of the same upon the buckets 5 rotates the wheel 2. As the wheel 2 is so fitted in the casing 1 as to have free rotary movement therein, the steam or fluid after impact with the buckets 5 will pass to the sides of the wheel in the space bewteen the said sides and the casing 1. The contact of the fluid with the casing will retard the same, so far as centrifugal movement thereof is concerned, so that the exhaust-ports 17 of the wheel will travel faster than the fluid and permit the latter to exhaust therethrough to the chambers 13, from which it passes out by the branched pipe 15 before described.

Having thus described the invention, what is claimed as new is 1 1. In a rotary engine, the combination of a casing, a motor-wheel mounted therein and posite sides of the motor-wheel and provided in the casing between the periphery of said motor-wheel and the hub portion thereof, the motor-wheel having a plurality of exhaust-slots extending from the periphery thereof toward the hub and terminating at the inner extremities and approximately opposite-the central portion of the exhaustchambers, and exhaust means leading from the casing.

2. In a rotary engine, a casing, a motorwheel mounted in said casing and provided at its peripheral portion with a plurality of buckets, inlets in the casing to admit a fluid for impact with the buckets, annular exhaustchambers at opposite sides of the wheel, exhaust-ports leading from the peripheral portions of the wheel to the exhaustchambers aforesaid, and suitable inlet and exhaust means for the casing.

In testimony whereof I affix my signature in presence of two witnesses.

CYRUS O. SYLVESTER. [L. s.]

Witnesses:

EDWARD J. BURT, m JACOB 000K. 

